Arid
DOI10.1007/s10531-014-0834-z
The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot
Mann, Gareth K. H.1; O’Riain, M. Justin2; Parker, Daniel M.1
通讯作者Mann, Gareth K. H.
来源期刊BIODIVERSITY AND CONSERVATION
ISSN0960-3115
EISSN1572-9710
出版年2015
卷号24期号:3页码:531-545
英文摘要

Camera traps are an increasingly popular tool for monitoring medium to large mammals, but the influence of camera trap placement on the detection probabilities of different species has seldom been investigated. In this study we explore the influence of roads on the detection probability of medium to large mammals in three vegetation types in the Little Karoo, an arid biodiversity hotspot. We placed cameras in nine 100 m-long transects, running perpendicular from roads within a conservation area. The camera traps were spaced at similar to 25 m intervals, and were active for an average of 88 days each. Detection probabilities relative to distance from roads showed extensive variation between species and habitat types. There was no clear relationship between distance from the road and the detection probability of most species and guilds, although carnivore detection probability declined significantly as distance from roads increased in all vegetation types. Our results suggest that there is considerable inter-specific variation in detection probability that is significantly influenced by camera trap location relative to roads. Therefore studies that seek to maximise the detection rates of particular species or guilds (e.g. carnivores) by placing cameras on prominent roads and trails are unlikely to provide reliable estimates of the relative abundance of the broader range of sympatric species; a trend observed elsewhere but hitherto untested in arid environments. We recommend that future studies employ a mixed design of cameras located on- and off-roads to provide better estimates of biodiversity in general and predators specifically.


英文关键词Animal movement Road usage Camera trap Monitoring Biodiversity Little Karoo
类型Article
语种英语
国家South Africa
收录类别SCI-E
WOS记录号WOS:000350228800007
WOS关键词TIGER PANTHERA-TIGRIS ; FOREST MAMMALS ; DIVERSITY ; ABUNDANCE ; ECOLOGY ; DENSITY ; PREY ; POPULATIONS ; ONCA
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186192
作者单位1.Rhodes Univ, Dept Zool & Entomol, Wildlife & Reserve Management Res Grp, POB 94, ZA-6140 Grahamstown, South Africa;
2.Univ Cape Town, Dept Biol Sci, ZA-7701 Cape Town, South Africa
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Mann, Gareth K. H.,O’Riain, M. Justin,Parker, Daniel M.. The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot[J],2015,24(3):531-545.
APA Mann, Gareth K. H.,O’Riain, M. Justin,&Parker, Daniel M..(2015).The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot.BIODIVERSITY AND CONSERVATION,24(3),531-545.
MLA Mann, Gareth K. H.,et al."The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot".BIODIVERSITY AND CONSERVATION 24.3(2015):531-545.
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